Description Usage Arguments Value References Examples
Distributed version of 'lapply'. Similar to dmapply
, but permits only one iterable argument, and output.type is
always 'dlist'.
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X |
vector, matrix, list, data.frame, dlist, darray, or dframe or other iterable object to supply to the function in FUN. |
FUN |
the function to be applied to each element of 'X'. |
... |
optional arguments to 'FUN'. |
nparts |
number of partitions in the output dlist. |
a dlist with number of partitions specified in 'nparts'
Prasad, S., Fard, A., Gupta, V., Martinez, J., LeFevre, J., Xu, V., Hsu, M., Roy, I. Large scale predictive analytics in Vertica: Fast data transfer, distributed model creation and in-database prediction. _Sigmod 2015_, 1657-1668.
Venkataraman, S., Bodzsar, E., Roy, I., AuYoung, A., and Schreiber, R. (2013) Presto: Distributed Machine Learning and Graph Processing with Sparse Matrices. _EuroSys 2013_, 197-210.
Homepage: https://github.com/vertica/ddR
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